A Scalable Hybrid Approach to Switching in Metro Ethernet Networks

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Executive Summary

The most common technology in Local Area Networks is the Ethernet protocol. The continuing evolution of Ethernet has propelled it into the scope of Metropolitan Area Networks. Even though Ethernet is fast and simple, the Spanning Tree in Ethernet is inefficient in terms of network utilization and load balancing. This paper compares the performance of Spanning Tree and Link State algorithms in the context of layer 2 switching. In addition, the authors introduce a hybrid scheme that is customized for Metro Ethernet Networks.

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